Dual Pro- and Anti-Inflammatory Features of Monocyte-Derived Dendritic Cells.

ABSTRACT: The transcription factor ?-catenin is able to induce tolerogenic/anti-inflammatory features in different types of dendritic cells (DCs). Monocyte-derived dendritic cells (moDCs) have been widely used in dendritic cell-based cancer therapy, but so far with limited clinical efficacy. We wanted to investigate the hypothesis that aberrant differentiation or induction of dual pro- and anti-inflammatory features may be ?-catenin dependent in moDCs. ?-catenin was detectable in both immature and lipopolysaccharide (LPS)-stimulated DCs. The ?-catenin inhibitor ICG-001 dose-dependently increased the pro-inflammatory signature cytokine IL-12p70 and decreased the anti-inflammatory signature molecule IL-10. The ?-catenin activator 6-bromoindirubin-3'-oxime (6-BIO) dose-dependently increased total and nuclear ?-catenin, and this was associated with decreased IL-12p70, increased IL-10, and reduced surface expression of activation markers, such as CD80 and CD86, and increased expression of inhibitory markers, such as PD-L1. 6-BIO and ICG-001 competed dose-dependently regarding these features. Genome-wide mRNA expression analyses further underscored the dual development of pro- and anti-inflammatory features of LPS-matured moDCs and suggest a role for ?-catenin inhibition in production of more potent therapeutic moDCs.

SUBMITTER: Azeem W 

PROVIDER: S-EPMC7120039 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature